Remove --add-opens directives on Java 17 (jenkinsci#263)

jenkins-agent

@@ -128,18 +128,6 @@ else
 	#TODO: Handle the case when the command-line and Environment variable contain different values.
 	#It is fine it blows up for now since it should lead to an error anyway.
 
-        FUTURE_OPTS=""
-        if [ "$JENKINS_ENABLE_FUTURE_JAVA" ] ; then
-                FUTURE_OPTS="--add-opens java.base/java.lang=ALL-UNNAMED
-                        --add-opens java.base/java.io=ALL-UNNAMED
-                        --add-opens java.base/java.util=ALL-UNNAMED
-                        --add-opens java.base/java.util.concurrent=ALL-UNNAMED
-                        --add-opens java.base/java.lang.reflect=ALL-UNNAMED
-                        --add-opens java.base/java.text=ALL-UNNAMED
-                        --add-opens java.desktop/java.awt.font=ALL-UNNAMED
-                "
-        fi
-
-        exec $JAVA_BIN ${FUTURE_OPTS} $JAVA_OPTIONS -cp /usr/share/jenkins/agent.jar hudson.remoting.jnlp.Main -headless $TUNNEL $URL $WORKDIR $WEB_SOCKET $DIRECT $PROTOCOLS $INSTANCE_IDENTITY $OPT_JENKINS_SECRET $OPT_JENKINS_AGENT_NAME "$@"
+        exec $JAVA_BIN $JAVA_OPTIONS -cp /usr/share/jenkins/agent.jar hudson.remoting.jnlp.Main -headless $TUNNEL $URL $WORKDIR $WEB_SOCKET $DIRECT $PROTOCOLS $INSTANCE_IDENTITY $OPT_JENKINS_SECRET $OPT_JENKINS_AGENT_NAME "$@"
 
 fi